IPC 7 English version
D21J-D21J00700

SECTION D – TEXTILES; PAPER


D 21PAPER-MAKING; PRODUCTION OF CELLULOSE


D 21 JFIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MÂCHÉ (manufacture of articles by dry processes B27N)


1/

00Fibreboard (preparation of pulp compositions or addition of chemical agents D21B, D21C, D21H; formation of the wet web D21F)

1/

02.Cutting, e.g. using wet saws

1/

04.Pressing

1/

06.Drying

1/

08.Impregnated or coated fibreboard

1/

10.After-treatment

1/

12..Hardening

1/

14..Conditioning

1/

16.Special fibreboard

1/

18..Hardboard

1/

20..Insulating board


3/

00Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds

3/

02.of rings

3/

04.of tubes

3/

06.of stoppers

3/

08.of bobbins

3/

10.of hollow bodies

3/

12.of sheets; of diaphragms


5/

00Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch moulds


7/

00Manufacture of hollow articles from fibre suspensions or papier-mâché by deposition of fibres in or on a wire-net mould